Analysis of wind loads in the building with a variation of roof shapes

Abstract

The Indonesian’s geographical position, which makes Indonesia frequent disasters due to wind, objects unable to withstand the wind can lift or shift these objects. This condition causes damage, such as a roof that is raised or floating. Buildings in Indonesia generally use gable roofs, hip roofs, and one-sided sloping (shed) roofs, while several types of roofs can be used in buildings, such as mansard roofs and curved roofs. This study uses a quantitative approach, which records and analyzes research data and performs data calculations with statistical calculations. This research compares wind loads based on SNI 1727-2013 Minimum Load for Planning of Buildings and Other Structures with different roof shapes in Bandung to determine the effect of each roof shape on wind loads on buildings and obtain roof shapes. With the smallest and largest wind load influence. Based on the research results, the displacement value in the roof structure due to wind loads is 0.025118 m (Hip and Gable), 0.018352 m (One-sided Sloping z1), 0.036073 m (One-sided Sloping z2), 0.027238 m (Mansard), 0.017629 m (Curved). Buildings with curved roofs produce minor wind load effects, and buildings with one-sided sloping roofs have the most significant wind load effects.